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Finding the Fourth Proportional to 126,391.66, 174,405.63 and 69,799.66

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Solution

The fourth proportional to 126,391.66, 174,405.63 and 69,799.66 is: 96,315.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,391.66 : 174,405.63 = 69,799.66 : x
  2. Step 2: Convert to fraction form
    126,391.66/174,405.63 = 69,799.66/x
  3. Step 3: Cross multiply
    126,391.66x = 174,405.63 × 69,799.66
  4. Step 4: Simplify right side
    126,391.66x = 12,173,453,676.09
  5. Step 5: Solve for x
    x = 12,173,453,676.09/126,391.66
  6. Step 6: Final answer
    x = 96,315.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.